collins



No Model.)

H. & J. W; COLLINS. BOBBIN SUPPORTING SPINDLB AND BOLSTER THEREFOR FOR WINDING MACHINES.

Patented July 6, 1886. 7

INVENTEJRS'.

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UNTTnn STATns PATENT @rrrcn. Y

HENRY COLLINS AND JOSEPH V. COLLIN 8, OF PAVVTUOKET, RHODE ISLAND.

BOBBlN-SUPPORTING SPINDLE AN-D BOLSTER THEREFOR FOR WINDING-MACHINES.

QLPECIFICATIQN forming part of Letters Patent No. 345,030, dated July 6, 188 6.

Application filed December 21, 1885. Serial No. 186,271. (No model.)

T0 (2% whom, it may concern.-

Be it known that'we, HENRY Counts and JosEPH W. OoLLINs, citizens of the United States, residing at Pawtuckct, in the county of Providence and State of Rhode Island, have invented a new and useful Bobbin-Supporting Spindle and Bolster therefor for \Vinding Machines, of which the following is a specification.

Our invention relates to bobbin-carrying spindles and their supports; and it has for its object to produce an oscillating bolster which shall be simple in construction, inexpensive in manufacture, and one which can be readily and easily placed in and removed from operative posit-ion.

The invention consists in a weightedbolster having an enlarged upper end, from which pivotal arms project, and a plate having a tubular depending portion, and formed with open sockets in its upper side for the reception of the pivotal arms on the bolster, the whole combined and arranged as hereinafter described.

The accompanying drawings arehereby made part of this specification, similar letters of reference thereon indicating correspoudi ng parts.

Figure 1 is a perspective view of our oscillating bolster and spindle in upright position, showing the plate and bolster-rail in section on the line xx ofFig. 2, and exhibiting an outline of the spindle carrying a filled bobbin,and inclined on the pivotal arms of the bolster by the tension of the yarn winding off from the bobbin. Fig. 2 is a top view of the bolsterplate,and of thc'bolster resting in the tubular extension of said plate 011 its pivotal arms,the bolster-rails being shown in outline.

a a are the bolster-rails.

c is the bolster-plate, having a tubular extension, c.

e c are sockets in the bolster-plate,for the reception of pivotal arms on the bolster.

show the oscillating bolster with its pivotal arms 7t is projecting from its enlarged upper end. 7

m is the spindle,having in its lower end the groove a, into which the end of the screw 0 extends, as seen in Fig. l.

r 9' show in outline a filled bobbin on the inclined spindle, and s s indicate the yarn or thread unwinding therefrom.

ttare screws which firmly secure the bolsterplate to the rails.

Our improved device isintended to replace the support for the supply-bobbin in machines of the class shown in Patent N 0. 236,767, dated January 18,1881.

In the application of our invention to such machinery, the thread or yarn seen at s sin Fig. 1 is passed through the stop-motion device and regulated to that degree of tension that will incline the spindle, as seen in out line in Fig. 1. Upon the breaking of the thread or yarn the tension is gone, and the bobbin is automatically brought to a vertical position by the weight of the heavy end of the bolster seen at y. As a part of this operation,it is essential that the bolster carrying the spindle and bobbin should be so made as to easily swing forward and backward in the manner shown and stated. This has been done heretofore by flattening the lower end of the spindle and so fastening it in the step of the bolster as to give the spindle play or spring for the purposes described; but we accomplish this by properly adjusting the weight of each end of the bo1ster,and providing its upper end with the pivotal arms It k, which are rested in the sockets e c in the bolster-plate c. In the old way the spindle is necessarily dead, and the bobbin revolves around it. Ours is a live-spindle turning with the bobbin and within the bolster. Therefore we adapt the chamber win the bolster to and make it a step for the suitable. support of the revolving spindle end.

In order that there may be no fluctuation of the spindle in the bolster-,we have grooved the spindle end, as seen at a in Fig. 1, making shoulders, between which the end of the screw 0 is extended, leaving the spindle free for its circular motion, but holding it firmly against moving in any other direction or way.

If a deadspindle be preferred to a live one, the end can be fitted to the step in the holster in any of the well-known ways without in any wise affecting the oscillating feature of the bolster above described.

We are aware that bobbin carrying spindles have heretofore been pivoted to an arm extend-- ing downwardly from the bolster-rail,and provided below the pivotal point with a counterweight for carrying the bobbin backward when the tension on the latter diminishes; l bin is diminished,and in forming therail-plate 20 also, that the spindle has been inserted in a tubular bearing-piece, which latter was pivoted at its lower end to an arm projecting downward from the rail, and also that said tubular piece, pivoted as above stated, has been provided with a laterally=extending arm carrying a counter-weight for a purpose similar to that of the counter-weight above mentioned. We therefore make no claim to either of these constructions.

By inserting the spindle in a bolster 'and pivoting the bolster at its upper end in the rail-plate we dispense with the necessity for a counter-weight attachment, for as nearly the whole length of the bolster is belowits pivots, and its extreme lower end is solid, the bobbin will be carried to a vertical position by grav ity of the bolster as soon astension'on the b0bwith a tubular extension we have provided a durable and proper chamber in which to receive the pivoted end of the bolster.

What we claim as new, and desire to secure by Letters Patent, is-

The combination, with the plate 0, having the tubular depending portions 0', and formed with open sockets e in its upper side, as described, of the weighted bolster q having an enlarged upper end, and provided at saidend 30 with pivotal arms k,projecting therefrom,and spindle m, substantially as described.

HENRY COLLINS. JOSEPH \V. COLLINS. 

